Comfort Roof Control Module for

  • Mini Convertible (R52)
  • BMW Z4 Roadster (E85)


  • Further information and manuals for all products can be found on our web site

    w w w . m o d s 4 c a r s . c o m

    We explicitly point out that all functions of this control unit should be used only while exercising caution and responsibility. We can NOT be held liable for any damage or injury caused by installing or using this product.
    Important Information. READ BEFORE INSTALLING!
    This manual is designed to produce completely filled pages. In order to get best print results, simply set the borders to minimum settings in the browser's page setup menu and disable headers and footers.

    Activate the print preview and if necessary decrease the zoom level until all pages are shown correctly.

    If you run into any problems after installing the module, please go over the manual again in great detail, clicking every photo for full size!
    We now have a full Knowledge Base with Support Ticket system available online at

    If you need to contact us, the best and fastest way to do so is by opening a support ticket there

    This module comes with our USB Field Upgrade and Configuration Port! We recommend connecting it to a computer BEFORE YOU INSTALL and using our support app "m4cconnect" to do a quick firmware update check. M4cconnect as well as all other information regarding USB update and configuration can be found at You can even configure and activate your favorite module functions and settings on screen before the module is installed in the car! It is a good idea to permanently install the USB cable with the module in the car, leaving the computer plug in an easily accessible spot for later use with a Wifi/3G/4G connected laptop.

    If the top does not work properly or at all after installing the module, these tips can be very helpful:

    1) Turn Function 1 (Main Switch) off (Setting 0). The module will be completely passive. If the problem still persists and the top won't work, check all connections. Please also check the green DATA LED on the module!

    2) Function 2 now has a valet mode (Setting 2) on many modules. Valet mode completely disables opening of the top. Check the setting for function 2 and make sure the module is NOT in valet mode!

    IMPORTANT: Not all modules have the valet mode! Please check the Operation and Programming Manual!

    The DATA LED shows the module status and helps troubleshooting issues during installation:

    When the ignition is ON: The LED should BLINK (flash) in a regular pattern (about 1x per second). This indicates that the module is receiving data and should work OK.

    When the ignition is OFF: The LED should BLINK (flash) as long as the data bus is still active and turn off after a while (max 5 min) indicating that the car has entered stand-by (sleep) mode.

    If the LED is permanently lit with the ignition ON, the module is NOT receiving data from the top controller and all connectors should be checked.

    If the LED does NOT light up at all when turning the ignition ON, the module is either not getting power or not receiving ANY data. All connectors should be checked.
    Installation - Steps 1-3
    1. Start out by putting the top completely down and turning the ignition off. Move the front seats seat all the way up as shown. Remove the back seat by pulling up hard in the front.
    2. Flip the rear left backrest down and remove the screw (1) in the middle between the two backrest halves (10mm socket).
    3. Push the locking lever up with a flat screwdriver. That makes it possible to unhinge the backrest pieces.
    Installation - Steps 4-6
    4. Fold the backrest up to a 45 degree angle, then pull up in the middle to get the center hinge out, then pull inward (towards the camera in the picture) while wiggling up and down to unhinge the outer hinge.
    5. The hinge mechanism and the reason it only comes out at a 45 degree angle can be seen clearly in this picture.
    6. Remove all fastening bolts (1) and (2) as well as the screw in (3) from the side panel.
    Installation - Steps 7-9
    7. Be careful when removing the inner pegs from the fastening bolts. Use a plastic pry tool or two flat screwdrivers.
    8. Flip the rubber seal over in the front to find another philips head screw. Remove it.
    9. Now, beginning from the front, push the whole side panel towards the center of the car and then up. It is held in place by a few snap locks to be seen in the next picture.
    Installation - Steps 10-12
    10. Back view of the side panel. The blue and green snap locks hold it in place.
    11. The white box in the corner is the top control unit. Remove the black 10mm nut.
    12. Disconnect the large plug (by pushing down hard on the locking tab in the middle while pulling).
    Installation - Steps 13-14
    13. Connect the plug (1) with the matching socket on the module harness, then connect the plug on the module harness with the socket (2) on the top controller. Make sure both latch securely into place.
    14. Put the top control unit back in place and secure it with the nut. Connect the smartTOP module to the wiring harness and use the supplied velcro sticker to attach it securely as shown. Now turn the ignition on and monitor the green LED (1) on the module. It should blink to signal a successful install. We recommend running the USB cable to an accessible spot in order to be able to update or configure the module via laptop later. Remember to configure the module according to our operation and programming manual.